Espresso coffee machine



FIG. 1 is a perspective view of an espresso coffee machine showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a right side view thereof; and,

FIG. 7 is a right side view thereof.

The broken lines in the drawing depict portions of the espresso coffee machine that form no part of the claimed design. 

CLAIM The ornamental design for an espresso coffee machine, as shown and described. 